Paper-calendering machine



(No Model.) z sheetssheet 1.

C. E. TORRANCE.

PAPER GALBNDBRING MACHINE.

No. 394,522. Patented Dec. 11, 1888.

"IM/Iliff NA PETERS. Phmirmhogmpher. washingmn, IJA C.

2 Sheets- Sheet 2.

(No Model.)

C. E. TORRANGE. PAPER GALENDBRVING MACHINE.

Patented Deo. 11, 1888.

@5U arfomlctj /Z UNITED STATES PATENT OFFICE.

CHARLES E. TORRANCE, OF SPRINGFIELD, MASSACHUSETTS.

PAPER-CALENDERING MAQHINE.

SPECIFICATION forming part of Letters Patent No. 394,522, dated December 11, 188B.

Application filed Malcl- 2B, 1887. Serial No. 232,708. (No model.)

T all wwnt it may concern.-

Be it known that l, CHARLES E. TORRANCE, a citizen of the United States, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Paper- Calender-ing Machines, of which the following is a specification.

This invention relates to paper-calendering machines, the object being to improve the construct-ion of the paper-guiding devices thereof, the means by which they are attached to the machine and hung opposite the rolls, and means for preventing the introduction of more than one sheet of paper into the calender at a time; and the invention consists in the peculiar construction and combinations of the above-referred-to parts of the calender, all as hereinafter fully described, and pointed out in the claims.

In the drawings forming part of this speciiication, Figure l is an elevation of the inner side of one of the upright end frames of apaper calendering machine, having applied thereto paper-guiding devices embodying my improvements, said iigure showing the outlines of the calender-rolls in dotted lines, the journal at one end thereof in section, and the journal-boXes in end elevation. Figs. 2 to 8, inclusive, illustrate in perspective views (eX- cepting Fig. 5, which is a transverse section) details of construct-ions, hereinafter fully cle-- scribed. Fig. 9 is a perspective view of the upper part of the calendering-machine, showing the sheet-guard devices thereon. Fig. l0 is a plan view of one of the sheet-guiding blades of the calender and its supporting-saddle. Fig. l1 is a similar view to Fig. 9, showing one of the calendering-rolls in sectional elevation and a side elevation of one of said sheet-guard devices suspended thereover.

In the drawings, 3 indicates one of the end uprights of the machine-frame, and is shown in side elevation in Fig. l and in transverse section in Fig. 5. The said upright has the usual vertical opening therein, in which are placed the j ournal-boxes l, in which the journals of the calender-rolls are supported, 5 being the usual pressure-screw, (the upper end being broken ott',) having a bearing against the upper box of the machine for forcing the rolls against each other in the usual way. On the inner side of said frame-upright 3 are secured two upright strips, (i, one on each side of the rolls of the machine, said strips having a longitudinal groove therein, iliade by turning inward the opposite edges thereof, whereby said groove is given a T shape in cross-section, as shown in 5, whereby said strips are adapted to hold a bolt or bolts by the head thereof, so that the bolt is sustained in substantially a horizontal position. Fig. 7 shows a portion of one of said grooved strips 6, and a bolt, 7, secured thereto adjustably by its head. The bolt 7, when simply hung by its head in the groove in the strip 6, does not maintain a position at right angles to the face of the groove, unless the thickness of the head and the depth of the groove correspond, and in that case the head fits too tightly to permit of moving the bolt up and down with freedom, and therefore to make said means of attaching the bolt 7 to the calender-frame available, and still permit the bolt to be moved with sufficient freedom in the strip, and to cause the bolt to be maintained at a position at right angles to the face of the strip 6, as shown in Fig. 7, a spring, 8, is suitably attached to the head of the bolt, and has its ends bearing upon the side of the strip at the base of its groove, whereby the bolt is forced endwise outwardly, causing the inner side of its head to come to a bearing under the opposite inturned edges of said strip, as shown.

By means of the above described connection of the bolt 7 with the said strip 6 the bolt retains its position when certain fixtures, hereinafter described, are disconnected therefrom for adjustment, and thereby much time is saved when the fixtures are reattached to the bolt from the fact that the bolt itself does not require any readjustment.

On the side of the upright 3 near its lower end is bolted a roller-support, 9, a portion of which is shown in perspective in Fig. S. The said support 9 is provided with a T-shaped groove, l0, of substantially the form of that in said strip (l, in which is shown the head end of a bolt, l2, which is connected in said strip l() in substantially the same manner as said bolt 7 is connected to the strip t, the said bolt l2 serving to secure a fixture-support, 13,

IOO

to said horizontal support 9, the latter having thereon a slotted upright, 14, to receive the boxes in which two sheetdelivery rolls, 15, run.

The tape-rolls 17 and the sheetguiding blade-rolls 1G `are supported inpeculiarly-constructed bearings in one end of the arms 18 and 19, in order that said rolls may be easily removed fromsaid arms for any required purpose without removing the supporting-arms from the frame of the machine, or in the least disturbing their adjustment, for in machines of this class it is desirable that said arms when once adj usted to the requisite positions to properly hold the rolls over which the tapes run and on which said blades are hun g should not be disturbed if it can be avoided, for their' adjustment to their proper positions requires much time and care. The said bearings in the ends of the arms 1S and 19 consist of a metallic sleeve, 20, inserted in the end of each arm or in one arm of t-he two which support any one roller or rod, said sleeve being capable of endwise motion in said arms, whereby it is withdrawn wholly or partially from the arm, as may be required, to leave the end of the roller-shaft which has a bearing within said sleeve quite free to be disengaged from said supporting-arm.

lIn Fig. 6 the sleeve 20 is shown in connection with the arm 19, and both this and the arm 18 are slotted longitudinally, as shown, from the sleeve-bearing therein toward vthe opposite end, and near said bearing is placed a clamp-screw, 21, passing transversely through the arm and across said slot, whereby said sleeve 2O is clamped, and thereby secured in any desired position, or it is freed to permit it to be moved in the arm, as aforesaid.

In Fig. 3.one end of one of said rollers 17 is shown, and in dotted lines the shaft of said roller is indicated as entering the end of the sleeve 20, which adjoins said roller, the shaft of the roller in practice entering said sleeve only far enough to give it a proper support, and not so far as to render it inconvenient to remove the roll when the sleeve is withdrawn from the end of the latter, as above described.

4 The aforesaid slot in the arms 18 and 19 is lic blades 22 are provided, and are supported on said rolls 1G by means of the below-described devices'.

It is well known to those skilled in the art of calenderin g paper that it is inclined tol adhere to the rolls as it passes between them,

owing tomore or less electrical action caused bytheA compressing effect of the, rolls upon the paper, whereby said sheets tend to adhere thereto instead of properly following the' usual guide-tapes, which are,run in the ordinary way in conjunction with said rolls. Furthermore, when metal strips or iingers which bear rigidly against said rolls are employed to cause the paper to separate from the latter after passing therebetween said rolls become injured by having rings or grooves worn in their surfaces, caused by a too forcible contact of metal pieces with the roll; and to obviate the above-named inconveniences in the papercalendering process, and to Yprovide greater conveniences in adjusting and manipulating the said devices, which cause the sheets to follow their proper course through the machine, is one of the principal objects of this invention. The said metallic blades are made of such width as may be desirable and as adapts them to be placed in and supported by either one of the blade-saddles 23 and 24,V

Figs. 2, L1, and 10, and to each of. the blades which are hung on the saddles 23 is attached a weight, 25, near the outer end of said blade, which is adjustable longitudinally thereon, and is secured in any desired position by a suitable screw shown on certain of said weights. The inner ends of said blades are caused by the said weights attached thereto to be held against the upper one of each pair of rolls, as shown, with such impact force as may be determined by said weight and the position of the saddle 23 on which the blade rests relative to the weight. A spring may be used in place of said weight, if desired; but its action would be less satisfactory, because less uniform than the weight. Y

The saddle 23 consists of a metallic bearing-block, a, having a curved bearing-groove, c, in'its under side, which adapts said block to rest on said rolls or rods 1G, and to have a free rocking motion thereon. Said block a has a screw, c, in one end,which passes through the slotted pending end of a tapering key, b,l whereby the latter is given an endwise moe tion in a groove, o7 on the upper side of the saddle. The said blade 22 is secured 011 the saddle 23 by being placed in the groove .o therein and then turning the screw e to drive the wedge b between the border of said groove and the edge of the blade. Itis obvious that the blade can be adjusted at pleasure in said saddle to bring the end of the blade which rests against the calender-roll to diferent distances from the contact-point ofthe two rolls. The said saddle 23 is adapted to rest on a round rod, as shown and described,vin order4 that the blade which it supports may, by the action of the said weight 25 thereon, have a free vibratory movement on said rod, whereby one end is held with the requisite force against the roll which is required to guide the edges of sheets of paper downward as said sheets emerge from between the rolls, the said rod constituting the fulcrum on which the blade vibrates.

In practice several of the blades 22, with their saddles, are placed on each of the rods IOO IIO

1G, opposite the calender-rolls. The rods upon which said saddles and blades are supported are adjustable vertically by means of the aforesaid slots in the arms lf), and also owing to the fact that the bolts 7, which secure said arms to the strips (i, are adjustable vertically in said strips.

The saddle 2i, as illustrated in Fig. 2, presents a similar but yet a different construction to the saddle 23, which is above described, as the saddle 24, by its peculiar construction, and the manner of its attachment to its supporting-bar 26 does not permit of the movement of the blade 22, (see Fig. 1,) which is attached thereto, excepting by means of an adjusting-screw, whereby it is retained in a particular position, and the manner of attaching said saddle to said bar by a shoe, 27, precludes the possibility of any rocking movement of the saddle and its blade on said bar. The said bar 2G, of metal or wood, supported in the ends of two arms 13, one of which is shown in Fig. l, which are secured on the inner sides of the aforesaid tape-roller supports 9. The said shoe 27 is adapted to iit onto the upper side'ot' the bar 26 and rest thereon, and said shoe and the saddle .Z4 are provided with hinge-lips, as shown, through which pivots pass, whereby the saddle is hinged on the upper side of the shoe.

The shoe 27 has a laterally-projecting arm, 2S, through the end of which a screw, 29, passes in a vertical direction against the under side of an arm, 30, which projects from the end of the saddle. The end of the arm is shown with a socket on it to receive the end of the screw 29; but said arm may be made with or without said socket. The saddle 2l is provided with said groove o on its upper side to receive the blade 22, and with the wedge b and screw e shown and described in Fig. 4, and serving the same purpose as those in the last-named figure. The bar 26 serves to hold several of the saddles 2l and their blades in the position relative to the upper side of the lower calender-roll shown in Fig. l, the holding devices of said bar being so adjustable on the support- 9 to swing the ends of the blades 22 in contact with said roll, and after having been brought to that position the ends of the blades which rest on the rolls are forced against the latter with the requisite degree of pressure to secure a perfect separation of the sheets from said lower roll as they come from the calender by operating the screw 29 against the end of the arm 3U and swinging the saddle 2t more or less.

Figs. 9 and l] illustrate my improvements for guarding against the introduction by the operator of more than one sheet of paper at a time between the rolls of the calender. These are provided in order that damage to the calender by feeding accidentally several sheets to lit when the rolls are set for one only may be obviated. Said sheet-guardingdevices conf sist of several curved pivoted levers, 39, hung to vibrate freely on a bar, 33, which is supported over the upper roll of the calender by suitable standards, 3i, resting on 011e of the journal-boxes, as shown. Each of said levers 32 has a roller or small pulley, 35, hung to one end thereof, and on the opposite end of said lever is formed a hook, 36. The end of said lever to which said roller is pivoted is the heavier one, and consequently the roller constantly rides on the upper calender-roll, and the lever is so adjusted over the latter that at the same time the side of the said hook 3U is lifted away from the surface of the roll far enough to permit one sheet of paper to pass between it and the roll when only 011e sheet is fed to the calender under roller 35 from the table 37; but should two or more sheets of paper be inadvertently introduced between thc roller and the calender roll thc lever 32 is thereby so swung on bar as to carry the hook 25o thereon near enough to the side ot' the calender-roll to cause all of said sheets, excepting the under one, to be caught by said hook, and their passage through the calender is thereby prevented. The said standards S-l, in which the bar 33 is supported, may be adjusted vertically by any suitable means in order to bring the hooked end of the lever 3; into proper relation to the adjoining surface of the calender-roll. In practice two or three of the levers 3; are hung above the calender-roll.

The features of the construction of the machine which are not claimed are shown and described merely for the purpose of conveying a better understanding' of the invention.

That l claim as my invention isl. ln a paper -calendering machine, the strips t3, secured to the frame thereof, each having a longitudinal groove therein ot" T shape in cross-section, combined with bolts engaging in said grooves, a spring located between tlie head of each of said bolts and the adjoining sides of said strips, a rod, lli, eX- tending horizontally between said strips, and two rod-supporting arms, lf), secured b v said bolts to said strips, substantially as set forth.

2. The roller-arm lt), slotted longitudinally and having a transverse clamp-screw near the. bearing therein, combined with a sleeve, 20, capable of a free movement in said arm, and a shaft having one end entering the end of said sleeve to a limited extent, substantially as set forth.

3. A blade-saddle for paper-calendering machines, consisting of the block having a groove to receive a blade, a tapering key entering said groove, and a screw entering said block and engaging with said key, combined with a shet-t-guiding blade, substantially as set forth.

l. Sheet-guiding devices for paper-calendering machines, consisting of a saddle, 2l, provided with a groove to receive a blade, a tapering key entering said slot, and a screw entering said saddle and engaging with said key, whereby the latter is given an endwise movement, and an arm, 30, projecting from IOO IIO

saidY saddle, Combined with a shoe, 27, to said levers having a roller von one end which ro which said saddle is hinged, having' an arm, engages Withthe side of theroll and a hook 28, thereon, and a screw therein engaging on Jche opposite end Capable of engaging with with said arm $30, a blade 22, and a, supporta sheet of paper on said roll, substantially as 5 ing-bar for said shoe, substantially as set r set forth.

forth. l .CHARLES E. TORRANCE.

5. Sheet-guard devices for vpaper-ezilenders, Witnesses: consisting of several curved levers, 32, piv- H. A. CHAPIN, oted to vibrate over one of Jche rolls thereof, G. W. CHAMBERLAIN. 

